Glass cleaning machine

The utility model relates to the related field of cleaning machines, in particular to a glass cleaning machine which comprises a spray head, a water inlet pipe, a fixing frame, a roller conveyor and a limiting mechanism. The limiting mechanism is arranged on the inner side of the fixing frame, the limiting cylinders are driven by the U-shaped plate to move inwards, and the inward moving distance of the limiting cylinders can be calculated through the scale marks, so that the distance between the two limiting cylinders can be calculated, the left side and the right side of glass can be better limited after the limiting cylinders move, and the production efficiency is improved. And when the glass is conveyed on the roller conveyor, the limiting barrel is driven to rotate, so that the beneficial effects that the glass is prevented from deviating in the conveying and cleaning process, the stability of the glass conveying and cleaning process is improved, the situation that the glass is abraded due to collision an